Doubletree-hanger.



MAltTlN KURZ, OF ST. LOU1S, MISSOURI.

DOUBLETREE-HANGER.

Specification of Letters Patent.

Patented Sept. 19, 1905.

Application filed October 29, 1904. Serial No. 230,586.

To (all whom, it may concern.-

Be it known that I, MARTIN KURz, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in .Doubletree- Hangers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in doubletree-hangers; and it' consists in the novel construction and arrangement of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a top plan of one end of a wagon pole and hounds, showing my invention applied thereto. Fig. 2 is a transverse section through the pole on line 2 2 of Fig. 1, showing the invention in side elevation. Fig. 3 is a transverse section through the doubletree on line 3 3 of Fig: 2, showing the device in end elevation. Fig. 4 is a top plan, on a larger scale, of the parts below the hounds, being a section on line 4 40f Fig. 2; and Fig. 5 is a vertical section on the broken line 5 5 of Fig. 1.

The object of my invention is to provide a doubletree-hanger which will relieve the pi'votal pin about which the doubletree oscillates of all strain, one which will relieve the pin of any and all bending strain, one which will preserve the doubletree permanently in its normal position relative to its axis of oscillation, and one presenting further and other advantages'better apparent from a detailed description of the invention, which is as follows:

Referring to the drawings, 1 represents the hounds, leading to the chair of the fifth-wheel, and 2 the pole confined between the hounds, a construction well understood in the art.

The base of the pole passes between the upper Y strap 3 and the lower hanger-plate or holder 4, respectively, secured to the hounds by means of bolts 5. The ends of the hanger are provided with depending flanges 4L, from which extend outwardly the horizontal wings or flanges 4: for a purpose presently to appear.

Secured by means of bolts 6 to the top of the doubletree D is a top plate 7, provided with the upper angular ofisets or lips 8, which loosely overlap the wings L forming suitable ways for the play of said wings for any oscillation to which the doubletree may be sub- Secured to the under side of the doubletree by the same bolts 6 is a bottom plate 9, through which passes the lower end of the pivotal pin 10, (depending from the hangerplate,) about whose axis the doubletree oscillates in a horizontal plane. This pin is suit ably countersunk in the plate 7 The lower end of the pin likewise passes through the front loop 11 of the stay-bracket 12, which latter is secured to the base of the hounds by bolts passed through the arms 13, forming a part of said bracket.

Aswas stated at the outset, there is no strain or draft exerted upon the pin 10, the latter being relieved of any strain by virtue of the following construction: Formed on the under side of the hanger 4 is an,annular socket 1 L, which receives a corresponding annular rib or bearing 15 of the top plate 7, and formed on top of the loop 11 of the staybracket 12 is an annular socket 16, receiving a-oorresponding annular rib or bearing 17 of the bottom plate 9. In the oscillations of the doubletree about the axis of the pin 10 the strains are taken up by the parts 14. 15 and 16 17 respectively, leaving the pin to act as a mere guide or fixed axis of oscillation for the doubletree. The driver of a wagon, as a rule, uses the doubletree as a convenient landing in getting on or off the wagon, and

in the old forms of construction the vertical strain to which the doubletree was thus subjected under the-weight of said driver would cause the pivotal pin of the doubletree to bend, and in time the partswould bind. Under my present improvement any vertical deflection or oscillation of the doubletree under the circumstances referred to is prevented, since-the engagement of the lips 8 with the wings 4 prevents oscillation of the doubletree in a vertical plane. Of course the horizontal oscillation of the doubletree is never sufl'icient to cause the wings 4 to pass wholly from under the lips 8. (See dotted position of parts in Fig. 1.)

While I have shown the annular sockets or cups 14 and 16, respectively, in the parts i and 11 and the ribs 15 and 17 respectively, in the parts 7 and 9, it is to be understood that a reversal of this arangement is contemplated by the present invention and does not constitute a departure therefrom. So, too, may the details in other particulars be modified without departing from the nature or spirit of my invention. Over the lower end of the pin 10 is passed a nut 18, as shown.

Having described my invention, what I claim is 1. In combination with Wagon-hounds, a hanger-plate secured thereto, a doubletree rotatable about a pin depending from the hanger-plate, terminal outwardly-projecting wings formed with the plate, a top plate secured to the doubletree, and having lips embracing the wings on the plate, substantially as set forth.

52. In combination with wagon-hounds, a hanger-plate secured thereto, a doubletree normally rotatable in one plane about a pin depending from the hanger-plate, and cooperative devices carried by the plate and doubletree for locking the doubletree against oscillation in a plane at right angles to its normal plane of rotation, substantially as set forth.

3. A doubletree hanger comprising a hanger-platesecured to the wagon-hounds, outwardly-extending wings at opposite ends of the plate, a pin depending from the hangerplate, a doubletree rotatable in a horizontal plane about the axis of the pin, a top plate on said doubletree having angular lips embracing the wings on the hanger-plate, a bottom plate on the doubletree, a stay-bracket carried by the hounds and having a looped terminal for the reception of the lower end of the pin, and suitable annular sockets and corresponding bearings surrounding the pin, respectively formed in the hanger-plate and stay-bracket, and in the top plate and bottom plate secured to the doubletree, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

MARTIN KURZ.

Witnesses:

EMIL STAREK, M. B. BELT. 

